Oh I have 32bit ubuntu 11.10, hold on let me build it for you.
Edit:
Sorry couldn't get it to build, would get stuck during make. Wouldn't even build at first due to missing json.h so I installed json-c and would end up with the following errors (Much more then these, small portion):
App.cpp: In function 'void SubmitShare(Curl&, Share&, unsigned char*)':
...
App.cpp:133:3: error: 'Json' has not been declared
App.cpp:133:15: error: expected ';' before 'root'
App.cpp:134:3: error: 'Json' has not been declared
App.cpp:134:16: error: expected ';' before 'reader'
App.cpp:135:24: error: 'reader' was not declared in this scope
App.cpp:135:42: error: 'root' was not declared in this scope
...
Hope someone else can get it working for you.